# Can a user back date their computer to run an trial version? QLM protects against back dating a computer.\ \ If a user back dates a computer, QLM detects that the system date was changed and prevents the software from running. Additionally, with QLM Pro and Enterprise, if the end user system is online, you can enable license validation on the server which will, amongst other things, validate that the time of the client computer is synchronized with the time of the License Server. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.soraco.co/docs/faq/can-a-user-back-date-their-computer-to-run-an-trial-version.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.